LT3754EUH#PBF

LED Driver IC Overview

The LT3754EUH#PBF is a 16-channel LED driver with an integrated step-up DC/DC controller designed for driving up to 45V of LEDs. It features accurate current sinks per channel, supporting a maximum output current of 50mA. The device operates within a supply voltage range of 4.5V to 13V and allows programmable switching frequencies from 100kHz to 1MHz. It provides extensive dimming capabilities, including a PWM dimming range up to 3000:1 and an analog dimming range up to 25:1. The IC maintains regulated LED current even when the input voltage is lower than the output voltage, adapting to LED forward voltage for optimal efficiency.

LED Driver IC Feature Summary

• Integrates a 16-channel LED driver with a step-up DC/DC controller for high-voltage LED strings
• Provides accurate current regulation per channel with independent sink outputs
• Supports wide-range dimming via both PWM (up to 3000:1) and analog (up to 25:1) methods
• Maintains constant LED current regulation regardless of input voltage relative to output voltage

LED Driver IC Applications

• LED lighting systems requiring high-voltage string driving
• Display backlighting applications needing precise multi-channel control
• Indicator circuits utilizing programmable frequency operation

LED Driver IC Procurement Notes

Verify the specific ordering suffix #PBF indicates lead-free compliance and RoHS adherence as defined by Analog Devices. Confirm that the EUH package designation corresponds to the 32-pin QFN EP form factor required for your thermal and spatial constraints. Ensure compatibility with the specified 4.5V to 13V operating range for your power architecture.

LED Driver IC Selection Notes

Select this component when designing systems requiring simultaneous drive of up to 16 LED channels with individual current control. It is suitable for applications where the LED string voltage exceeds the available supply voltage, necessitating a boost topology. Consider the 100kHz to 1MHz frequency range for inductor sizing and EMI management. The wide dimming ratios make it appropriate for high-contrast display or lighting environments.

LED Driver IC Part Context

This part belongs to the LT3754 family of multi-channel LED drivers from Analog Devices. It is specifically engineered for complex LED arrays where uniform brightness and high-voltage capability are critical. The integration of the boost controller simplifies the bill of materials by eliminating external controller requirements for step-up topologies.

LED Driver IC Replacement Considerations

Public confirmed substitute part numbers are not provided in the source documentation. Consult Analog Devices official resources for cross-reference data.